Very few people get into creative fields to do one thing. Most of us have more than one book in us, more than one film, and even if we have only one company in us, we’ll probably want it to have more than one product over its lifetime.
Diversity and productivity are critical parts of that type of longevity. But they require the ability to experiment, to try new things, and to support a body of work, which in turn requires the development of independence and infrastructure.
Short of a trust fund or a patient, deep-pocketed patron, there is only one way to do that.